MESON Chess Problem Database

Problem Display
PID: 222376 (8/6B1/8/2p3Qp/2B1kn2/8/1P6/7K w - - 0 1)

Thursby, John Ormerod Scarlett

75 Chess Problems, 1883

8/6B1/8/2p3Qp/2B1kn2/8/1P6/7K

#2

5 + 4

6490 yacpdb 2020

SOLUTION

  • SOUND
  • Sets
    • 1...Sd3
      • 2.Bd5#
  • Keys
    • 1.Bh6!
      • threat
        • 2.Qxf4#
      • 1...Ke3
        • 2.Qxf4#
      • 1...Kf3
        • 2.Qxf4#
      • 1...Kd4
        • 2.Qxf4#
      • 1...Se2
        • 2.Qd5#
      • 1...Sg2
        • 2.Qd5#
      • 1...Sd3
        • 2.Qd5#
      • 1...Sh3
        • 2.Qd5#
      • 1...Sd5
        • 2.Qxd5#
      • 1...Se6
        • 2.Qd5#
      • 1...Sg6
        • 2.Qd5#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 1
    • ADDED MATES = 9
    • REMOVED MATES = 0
  • Sets
    • S(b);N_GUARD,SBLOCK::B(C)
  • Actual
    • B(E);
    • Threat
      • QAR1(D),XS(b)
    • Vars
      • K(a);P-FLIGHT,P_SPINS(b)::QAB1(D),XS(b)
      • K(a);S_FLIGHT::QAR1(D),XS(b)
      • K(a);P-FLIGHT::QAR2(D),XS(b)
      • S(b);N_GUARD::QAB1(D)
      • S(b);N_GUARD::QAB1(D),XS(b)
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Developed and maintained by Brian Stephenson.
Implemented with HTML5, MySQL, Perl (with, inter alia, CGI::Simple, HTML::Template & XML::LibXML) & CSS/Javascript (jQuery, Bootstrap & DataTables).